/Engine/Plugins/Experimental/Chooser/Source/ProxyTable/Public/ProxyTableFunctionLibrary.h
Create a LookupProxy struct
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintPure, Category="Animation", Meta=(BlueprintThreadSafe, BlueprintInternalUseOnly="true")) static [FInstancedStruct](API\Plugins\StructUtils\FInstancedStruct) MakeLookupProxy ( [UProxyAsset](API\Plugins\ProxyTable\UProxyAsset) * Proxy )